<ul class="nav nav-list">
        <volist name="submenus" id="v">
        <li <in name="v[id]" value="$f_lanmu"> class="active"</in>>
          <if condition="!count($v['child'])"> <a href="{:U($v[name])}"> <i class=" icon-{$v.icon|default='desktop'}"></i> <span class="menu-text">{$v.title}</span> </a>
            <else/>
            <a href="#" class="dropdown-toggle"> <i class=" icon-{$v.icon|default='desktop'}"></i> <span class="menu-text">{$v.title}</span> <b class="arrow icon-angle-right"></b> </a>
            <ul  class="submenu">
              <!--二级菜单-->
              <volist name="v['child']" id="vo">
              <li <in name="vo[id]" value="$f_lanmu"> class="active"</in>>
                <if condition="!count($vo['child'])"> <a href="{:U($vo[name])}"><i class=" icon-{$vo.icon|default='caret-right'}"></i> <span class="menu-text">{$vo.title}</span> </a>
                  <else/>
                  <a href="#" class="dropdown-toggle"><i class=" icon-{$vo.icon|default='caret-right'}"></i> <span class="menu-text">{$vo.title}</span> <b class="arrow icon-angle-right"></b> </a>
                  <ul  class="submenu">
                
                    <!--三级菜单-->
                    <volist name="vo['child']" id="voo">
                    <li <in name="voo[id]" value="$f_lanmu"> class="active"</in>> <a href="{:U($voo[name])}"> &nbsp;<i class=" icon-{$voo.icon|default='caret-right'}"></i> <span class="menu-text">{$voo.title}</span> </a> </li>
                      </volist>
                  </ul>
                </if>
              </li>
              </volist>
            </ul>
          </if>
        </li>
        </volist>
      </ul>
